The DA LED series by Beamworks provides a high quality, energy efficient light fixture that replaces the typical single or dual tube fluorescent lights. Use the 10000K white and Actinic 460nm LEDs during the day and only the Actinic Blue 460nm LED during the night. The DA LEDs is fitted in a sleek and razor-thin fixture that will make any other aquarium light look boring. Long lasting LEDs with no bulb replacement required. Extendable brackets allow for use with various size aquariums. Fixture is pre-wired for use with the optional timer module to program on and off times.